Loose leaf binder



May 7, 1935. s. G. JOHNSON LOOSE LEAF BINDER Filed May 9 R O T. N E V m ATTORNEY.

25a-a 'im-af; s151111V another' object of-fthis-flinventien si to l provide @positive preferably-f doubl'e'i detent 'i ytype:exrgegenient berweenthe coperaftingparte Patented Mary 7, 1935 i f tion ` struction #that the leafengagingfmembers:may

siredrelationto each other.v

'- Another object of thisinvention is-t "provideA 105e loose leaf binder having post-typej lockingfdeej VicesJseourre'dv to oneof the 'leaflengaging inmembersl capable" of l positively retaining.' cooperatingv posts'seoured tothe other leaf-'engaging member Ninl telescopio relation Ithereto and thereby? posilllltiveiyanoidmg theV said leef:engaging=KV members-11 vAnother folject ofi tlliiseinventioxr-listo f'nrooid@ a. 'positive' looking post type-1A loose Lleaf-iifidr gaging membersof a. loose leaf binder initlede# 3G12?sirfrdfrelbiomtoeeolotherfas distinguished from theusualifrictional type@lnckngi'devices` oni'gdh.

vioesrelying; upon. a, viselike. bitingaengagementi! between.th'eacooperatingfpartsthereof;-.l u

- Illustrative 'embodim'entsof this; invnti'onak as@ accompanying: drawing', ..-innWhich-:Jl

mation;

' Fig; isy atvertical"sectionr tken="on:

applie'dito closedback: binders'A drei-@shownin .thea f thef=1engagem'nt` betweenfthef cooperating parts- `of the locking'devioiy f' l. l'

sectionaiy view .simi1ar: tqgmgtjbgex. Vcepttliiz ymathe' embodimentuo'fctne invent-'ion shown-Jin therein; andftwomollowi postitypef'lloclingfdetices; having preferablyihadedsolidAgrooved ITF' tion .wimrsrespect'wgthe lem:engatgfir 1g members IU and Il..i'Ilieleafeengagingmenibersl-fmandii Ilareieactizprefrably; formedJofjsheet-metliin ,2752` 1f;

simplyaiu nat sheet: ofi meter. for 'the open- Stamm;- type of binder; The leaf-engagingjmembers;

covers; exibl 1 cover: connections orliinges `and 30151 theuseful limitsf-y off-fthe telescoptngJ enggemeiit olf'itheisolifd and-hollowiposts thereof. The lock-*j the snai-Houder |abeme'preferabiyequaliin l height intem'al? dImeteito hollow p'ostsl postsiMiandmoion-leefiengagiiighembers Ioan'd" urvsrieetsslmyimeansfof fproperlyspeced: holes 'I isi*` f eten slightly iargervthanfsolidigimvea post 1151s 503* secured to the leaf-engaging member I at such spacing that they will register with andl be telescopingly engaged by hollow posts I5 and v|8 which are riveted or otherwise secured to the leaf-engaging member II.

The hollow posts I8 are preferably formed by v drilling an eccentrically located vertical Vhole slightly larger in diameter than the solid posts I 1 through a round blank of theproper length, flattening the remaining thickfwall of the post' to form a at side of the said post I8 as shown in Fig. l, and shouldering the same to form a hollow rivet at the bottom thereof'as hereinbeforede- A post I'I thereby completing the positive double de- Now referring to Fig. 6, each hollowjpost I8 is provided with a horizontally'disposed round hole scribed.

2| drilled normal tothe ilat side of and partly through the hollow post I8 and 4on the sameV center as a smaller hole 22 which forms ashoulder 23 to seat a preferably hardened rivet 24 which functions t0 lock the solid grooved p Ost I1 against movement relative to the hollow postrIB when@ v and'shouldered hollow end forming a rivet |98 telescopingly engaged thereby. V.The rivet 24 is formed with a shoulderbeneath the head 25 to abut against the1shoulder23 formed in thehollow post I8. The rivethead,

25 is of slightly less diameterthanfthe hole 2| to permit assembly and the free rotation of the rivet 24. The top ofthe rivet head 25 isground before hardening to form a concaved groove having substantiallythe same radius as the vertical hole in the hollow post I 8. The shank of the rivet 24 is long enough to extend through the hole 22 in the hollow post I8, receive a spring washer V25, be flattened on two: sides to provide vakey. 29

to engage an operating lever .30, and form a head to retain the said rivet, spring washer and operating lever in the desired position in relation to the said hollow post I8. i f f tiondescribed herein, in which case holes 2| and 22 ofthe hollow post I8 would be formed asy one tapered hole.

Theoperating lever 30 is provided with a lug 3| to abut againstthe hollow'post I8 when l the conas high as desired within the useful limits of the i ,telescoping engagement of the solid grooved and hollow posts'IIA and I8 of the locking devices.

The operating lever 30 is moved to the disen-V gaged position shown. in Fig.` 2, thesolid posts I4 andmII are then brought in telescopic engagement with the hollow posts I5 and 8 respectively, the leaf-engaging members III and I are then preferably pressed into compressed relationship to eachother thereby engaging the punched ller sheets I6 as in Fig. 3 and the operating lever 3|] is moved to the engaged position as shown in Fig. 3 to lock the leaf-engaging members I0 and II in the desired relation to each other.

'Ihe positive locking means of engagement bef tween the solid grooved and hollow posts I'IV and I8 is accomplished by thepreferably double detent engagement therebetween as illustrated in Figs; 4, 5 and'?. Fig. 4 shows thev solid grooved :apd hollowposts ,I'IVA and I8 in unlocked `vrelation The rivet 24 may be tapered instead ofshoul-v dered without departing from the broad invento each other with the operating lever 3U in a dis'- engaged position and the grooved head of the rivet 24 coincident with the inner surface of the hollow post I8. When the operating lever 30 is moved toward its'engaged position it causes the lgrooved head 25 of the rivet 24 to register with the nearest peripheral grooves in the solid grooved tent typelocking engagement between the solid Ygrooved and hollow posts II and I8.

for securing the said'posts to the leaf-engaging member I8. The said solid posts IID are lmurled in such amanner that the high portions of the grooved head 25 of the rivet 24 will register with the knurling in the solid posts Il'llwhen the said rivet is turned into its engaged position by the operating lever 30. l

It is readily observed vthat the above described binderis simple to operate, sturdy in construction and economical to manufacture, and provides anabsolutely positive means for maintaining the leaf-engaging members in any desired relation to each other. The grooves in solid postsI'I or-thel knurling 0f solid posts I'I0 may be 0f a wide range of detail to permit the high portions of the grooved head 25 of the rivet 24 to register there-- with. Also, a single detent type lockingengage- '40 i ment may be used by forming the rivetvhead 25 of the rivet 24'inthe shape of an L insteadgof thez.

Uv shaped groove as illustrated in the drawing.

Although only two embodiments of this invention have'been illustrated and described, it will be apparent to those skilled inthe art that variousmodifications may be made therein Without'l appended claimsdeparting from the scope of the Iclaim; v 1. A loose leaf binder of thejpos't type compris' ing opposed leaf-engaging members, means onv said leafengaging members Vto cooperate with punched filler sheets, solid grooved posts secured 4 to one' of the leaf-engaging members, hollow posts secured to the other leaf-engaging member.

adapted to telescopinglyfcooperate withthe solid' grooved posts, locking means yrotatably 4mounted q in the saidhollow posts each comprising a rivet bers forv receiving punched filler sheets, solid..

grooved postssecured to one Yof the leaf-engaging members,:cooperating hollow posts secured to the other leaf-engaging member, a rivet rotatably mounted kin each of the said hollow posts having its head concaved substantially the same radius as l the center of the said hollow post, means to rotate the rivet in `one direction to urge the solid grooved post against the inside of the hollow post and cause the high portions of the grooved rivet head to register with ,saidr solid grooved` post, `and, means to limit the rotation of the rivet in theH other direction to bring the concaved portion of its head in axial alignment with the said hollow post toY permit free reciprocating movement of the vsolid grooved post within the vsaid hollow post.v 3. A loose leaf binder comprising leaf-engem?v ing members, means on said leaf-engaging members for 'receiving punched ller 'sheets,1 solid knurled posts secured to one of the leaf-engaging members, cooperating hollow posts secured to the other leaf-engaging member, a rotatable locking device within each of Vsaid hollow posts disposed and rotatable on an axis normal thereto,and inescopingly receiving the said solid grooved posts,

rotatable locking means within and normal to said hollow posts adapted tobe urged manually into registry with said solidl grooved posts.

5. A loose leaf binder comprising leaf-engaging members, means on said leaf-engaging members for receiving punched flller sheets, ,solid annularjV posts.

ly grooved round posts,v secured; to# one of thL leaf-engaging members, cooperating hollow posts secured to the other leaf-engagingmember, and

Y rotatable locking devices within'said hollow posts disposed normal thereto adapted to prevent rela'-V l .tive movement of `said solidgrooved and hollow posts by registeringwiththe solid grooved posts.

6. In a post type loose leaf `binder having" opposed leaf-,engaging `'members and means for ref ,Y y

10 round posts secured toone of theleaf-engaging ceiving Viller sheets, solid .annularlyV grooved members, hollow posts telescopingly receiving said solid grooved posts secured to the other leafengaging member, rotatablelocking devices within said hollow posts disposed normal thereto, and A Vmeans to rotate said locking devices into registry;

with the annular grooves in ltl'lesolid grooved r 7. A loose leaf n A memberameans on'said leaf-#engaging members binder comprisingleaf-engaging for receiving punched ller sheets, vrsolid 'annu'- I larly grooved round posts secured to V`one of `,the

leaf -engaging members, cooperatingy hollow posts lsecured tothe other leaf-engaging member, a y

25l 'low posts vhaving inwardly disposed( detents f rotatable locking device within each of said holformedl thereon adapted to register with annular Vgrooves in'said'solid grooved posts toprevent rell` l atve movement of 'said` solid groovedV and hollow;V

'Y posts, and means to cause rotation" of said locking said solid grooved Ydevice on' an axis normal to and hollowposts.

` Y l STANLEY G. JOHNSON. 

